/*
 * Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package com.oracle.truffle.espresso.analysis.liveness.actions;

import com.oracle.truffle.api.CompilerDirectives.CompilationFinal;
import com.oracle.truffle.api.nodes.ExplodeLoop;
import com.oracle.truffle.espresso.analysis.liveness.EdgeAction;
import com.oracle.truffle.espresso.analysis.liveness.LocalVariableAction;

public class SelectEdgeAction implements EdgeAction {
    @CompilationFinal(dimensions = 1) //
    private final int[] from;
    @CompilationFinal(dimensions = 1) //
    private final LocalVariableAction[] actions;

    public SelectEdgeAction(int[] from, LocalVariableAction[] actions) {
        this.from = from;
        this.actions = actions;
    }

    @ExplodeLoop
    public void onEdge(long[] primitives, Object[] refs, int fromBCI) {
        for (int i = 0; i < from.length; i++) {
            if (from[i] == fromBCI) {
                actions[i].execute(primitives, refs);
            }
        }
    }

    @Override
    public String toString() {
        StringBuilder str = new StringBuilder();
        for (int i = 0; i < from.length; i++) {
            str.append("\tfrom " + from[i] + ": " + actions[i].toString() + "\n");
        }
        return str.toString();
    }
}
